This is the 3rd lens I am reviewing from Sainsonic, and I must say they become better and better, a little bit like Venus Optics with their Laowa line where the quality has improved with their latest lenses

The Kamlan 28mm is the equivalent of a 42mm on a full frame body , so quite a nice focal length for a generalist usage, close to the angle of view of the human eye. It has a large aperture of F1.4, that allow to blur the background even on an APS-C sensor

The build quality is good with the lens barrel in metal and lens hood in hard plastic (perceived quality has improved over the Kamlan 50mm F1.1)

Focusing ring turn smoothly

Aperture ring is click less which is very good for video, but its more dampened , which is also good to avoid changing aperture by error and to smoothly change it in video. There is no F11 mark

The rear lens cap has been improved over the Kamlan 50mm and is no more falling apart

The lens is presenting good sharpness wide open that will be perfectly ok for portraits of object details, closing it down and it becomes excellent

The corners are quite bad wide open but this is not an issue in general as it will be in the blur in general, surprisingly after a slow increase of sharpness there is a huge step up around F5.6 , at F8 results are really excellent

So good in the centre for portrait or details with corners in the blur and excellent for landscape , distant subject when closed down to F8

2.3 Bokeh / Color Rendition – Bokeh / Rendu des Couleurs

Bokeh is very good : the background blur is very smooth and the bokeh balls are soft and well shaped. they become oval as you reach the border. This is a performance you sometimes see in > 1000 euros lenses

Color rendition is quite good even and in general the is a strong contrast present

There is a nice 3D pop up effect for people when shooting wide open at medium distance, which reminds me a little bit of the Zeiss signature